Chair part



FIG. 1 is a perspective view of a chair part, showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a back elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines define the bounds of the claimed design and form no part thereof. 

The ornamental design for a chair part, as shown and described. 